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Finding the Fourth Proportional to 65,693.14, 90,656.88 and 35,885.14

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Solution

The fourth proportional to 65,693.14, 90,656.88 and 35,885.14 is: 49,521.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,693.14 : 90,656.88 = 35,885.14 : x
  2. Step 2: Convert to fraction form
    65,693.14/90,656.88 = 35,885.14/x
  3. Step 3: Cross multiply
    65,693.14x = 90,656.88 × 35,885.14
  4. Step 4: Simplify right side
    65,693.14x = 3,253,234,830.76
  5. Step 5: Solve for x
    x = 3,253,234,830.76/65,693.14
  6. Step 6: Final answer
    x = 49,521.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.